Exit device having a deadbolt as its securing member

Details Exit device having a deadbolt as its securing member Exit device having a deadbolt as its securing member

E - Fixed Constructions

05

B

E05B 65/10 (2006.01)

Patent

CA 2134605

This exit device has a press bar and an elongated deadbolt adapted to be mounted horizontally adjacent the free end of the door and a pivoted retractor blade inward of the door. The blade is pivoted by the press bar and engages with its nose a projecting surface on the deadbolt and retracts the deadbolt. The blade also has a keeper contact surface which, as the door closes, is contacted by the keeper and the blade is pivoted inward to retract the deadbolt. The retractor blade also serves as an anti-friction bearing having a peripheral portion which rolls against the deadbolt and counters against the inward force on the deadbolt opposing to the opening force on the door.

La présente invention a pour objet un dispositif de sortie de secours comportant une barre d'appui et un pêne dormant de forme allongée destiné à un montage horizontal du côté libre de la porte, ainsi qu'une lame de retrait pivotante vers l'intérieur de la porte. La lame de retrait est actionnée par une pression exercée sur la barre d'appui et, venant en prise avec une saillie à la surface du pêne dormant, produit le retrait de celui-ci. La lame de retrait comporte également une surface de contact avec la gâche qui, lorsque la porte se referme, est mise en contact avec la gâche, ce qui fait pivoter la lame vers l'intérieur et produit le retrait du pêne. La lame de retrait fait également office de surface antifriction, et dont la portion périphérique, en roulant sur le pêne dormant, s'oppose à la force de retour du pêne vers l'intérieur en opposition à la force d'ouverture exercée sur la porte.

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